Effects of Pedicle 6-Screw Internal Fixation through the Injured Vertebra and Pedicle 4-Screw Internal Fixation across the Injured Vertebra on Spinal Stability in A1 Type Thoracolumbar Fractures
Objective:To study the effects of different internal fixation operations on the spinal stability of A1 thoracolumbar fracture.Methods:A retrospective analysis was conducted on the clinical data of 146 pa-tients with A1 type thoracolumbar fractures treated in our hospital from January 2021 to January 2023.Based on the method of internal fixation surgery,82 patients who underwent six-screw transpedicular fixation were included in Group A,and 64 patients who underwent four-screw transpedicular fixation were included in Group B.Perioperative indicators,sagittal Cobb angle,vertebral height compression rate,Oswestry Disability Index(ODI),stress indicators,and postoperative complications were compared between the two groups.Re-sults:No significant differences were found between Group A and Group B in terms of intraoperative blood loss(248.49±22.36 mL vs.244.03±20.71 mL),bed rest duration(4.92±1.24 days vs.5.03±1.10 days),and hospital stay length(8.35±1.76 days vs.8.75±1.43 days)(P＞0.05).The surgery time was signifi-cantly longer in Group A(129.80±17.02 minutes)compared to Group B(122.95±15.63 minutes)(P＜0.05).At the T2 time point,the sagittal Cobb angle,vertebral height compression rate,and ODI were signifi-cantly lower in Group A than in Group B(P＜0.05).There were no significant differences in the levels of prostaglandin E2(PGE2)and norepinephrine(NE)between the two groups at 24 hours and 3 days postoper-atively(P＞0.05).The incidence of postoperative complications did not differ significantly between the two groups(χ2=2.598,P=0.107).Conclusion:Although the six-screw transpedicular fixation surgery has a longer duration,it more effectively restores spinal stability and improves functional outcomes in patients with A1 type thoracolumbar fractures.
Pedicle 6-screw through injured vertebraPedicle 4-screw across the injured verte-braType A1 thoracolumbar fracturesSpinal stability
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